Lather brush



April 2Q, 1924.

M. B. BEHRMAN 1,492,346

LATHER BRUSH Filed April 24 1922 INVENTOR /yfms iwf/mw ATORNEY Fatented Apr. 29, i924.

narran sraras iAtZeid FTENT QFFIC MARCUS B. BEHRMAN, OF NEW YORK, N. Y., ASSIGNOR TO THE LOX SEAL CORPORA- TION,'OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

LATHER BRUSH.

Application led April 24, 1922. Serial No. 556,188.

T 0 all whom it may concern.'

Be it known that I, -MARoUs B. BEHRMAN, Ia citizen of the United States, and a resident of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Lather Brushes, of which the following is a specification.

The invention pertains to lather brushes of the type heretofore comprising a handle, a ferrule receiving the threaded shank end of the handle and a bunch of bristles or the like bound together at the knot end thereof and permanently secured within the lower end of the yferrule by a cementitious material. Lather brushes of the construction described possess the disadvantage that the knot end of the bunch of bristles being permanently secured within the ferrule, the bunch mayn not be subjected from time to time, as may be necessary or desirable, to the process of sterilization without inliury to the ferrule. In many instances, also, the handle has been permanently secured to the ferrule, and hence obviously the brush could not be subjected to a boiling process for the purpose of sterilizing the bristles without injury to both the ferrule and handle thereof.

In accordance with my present invention I provide a ferrule and a bunch of bristles whose knot end is seated within the ferrule in a manner permitting of the separation, whenever desired, of the bristles from the ferrule. and I secure the bunch of bristles in rigid relation to the ferrule by means of the handle which. when screwed into the outer end of the ferrule, creates a pressure against the knot end of the bunch suiiicient t0 firmly bind the bunch of bristles in fixed relation to the other parts of the brush.

I illustrate in the accompanying drawings a preferred embodiment of my invention. not intending, however, in every instance, to be limited to all the details of construction thereof, and the invention will be fully understood from the description hereinafter presented. reference being had to the accompanying drawings. in which:

Fig. 1 is a side elevation, of a lather brush constructed in accordance with and embodying the invention;

Fig. 2 is a central vertical section through the same, and

Fig. 3 isa side elevation, partly broken away, showing the several parts of ,the brush as juxtaposed for assembly to produce the brush shown in Figs. 1 and 2.

In the drawings, 10 designates the handle, l1 the ferrule, and 12 the bunch of bristles or the like, forming the brush, the knot ends of the bristles being firmly secured together by rubber or other material to form a knot 18 which is closely encompassed by a securing metal band 111 whose sides converge downwardly and inwardly and form a downwardly and inwardly inclined and slightly convexed exterior seating surface 15 extending entirely around the band.

The handle 10 may be of 'any suitable outline adapted to be conveniently grasped by the hand, and said handle at a suitable distance below its upper end is formed with an annular shoulder 16, below which the handle is constructed with a threaded portion 17 and a plain downwardly projecting extension or shank portion 18.

The ferrule 11 has a screw thread 19 within its upper portion toengage the thread 17 on the handle, and below its threaded section 19 the ferrule is formed with a tubular section 20" and below' that with inwardlv converging interior walls 21, below which the ferrule is formed with a narrow, plain,

annular inner surface 22. The downwardlv and inwardly converging walls 21 in the ferrule 11 form an annular seat to receive the correspondingly shaped exterior surfaces 15 of the knot-band 14,sa'id walls 21 and ysurfaces 15 matching together, as shown in Fig. 2, and cooperating to form a substantial base for the knot-end of the bristles and also as means to prevent the knot-end of the bunch from being driven out through the lower end of the ferrule. llVhen the bunch of bristles is in position in the ferrule, the lower annular walls 22 of the ferrule extend below the knot-band 14 and afford plain smooth surfaces to engage or be engaged by Athe bristles immediately below said band.

In assembling the several parts of the brush, I first introduce the bunch of bristles carrying the knot-band 14C into the ferrule 11, the bristles being squeezed together at their free ends and inserted kdownwardly through the ferrule until the knot-band 14 becomes seated against the downwardly and inwardly converging walls 21 of the ferrule, or to the position shown in Fig. 2, and thereafter I -screw the handle 10 into the ferrule and cause the portion 18 thereof to act against the knot-end oit the bunch of bristles in a manner to irmly bind the knotband 14 against the aforesaid downwardly` and inwardly converging walls 21 of the ferrule. F or some brushes the extension 18 of the handle will extend to and act directly against the knot-end of the bunch or bristles and for other types ot brushes, l will lirst place a disk or disks upon the knotend of the bunch and then screw the handle 10 into the errule until the extension 18 of the handle engages and binds said disk or disks against the knot-end of the bunch. In the drawings I have illustrated the insertion above the upper end ot the knot, of a rubber or yielding disk 23 and a hard disk 24 placed thereon, said disk 24 being preferably of the same material. as the handle 10, which may be of celluloid, bakelite, hard-rubber or any of the usual materials employed in making handles tor lather brushes.

When the disks 23, 24 are made use of, they act as a prolongation of the extension 18 of the handle and cooperate therewith lin vthe securing of the bunch of bristles rmly in position. l have employed the disk 24 alone interposed between the knot 13 and lower end of the handle to constitute a removable extension of the section 18 of the handle when the handle did not directly reach, with sutlicient firmness the knot 13, said disk serving to extend the handle and in that way compensate for structural differences that may be found in handles and ferrules 11. I deem'it convenient to employ a thin disk 23 of rubber or other yielding material below the disk 24, or as a facing on the lower side of said disk 24, so that when the handle 10 is screwed home, the disk 23 lwill be compressed and exert a tension serving to bind the screw threads 17 on the handle in tight relation to the screw-threads 19in the ferrule, thereby securing not only a firm locking of the bunch ot bristles in position, but a desirable binding action of the handle against the ferrule, whereby the handle is not permitted to have any looseness in its relation to the ferrule, the handle, terrule and bunch thus being very securely bound together and held in rigid relation to one another.

The main point of the invention is the provision of a lather brush construction wherein the bunch of bristles may be properly seated in the lower end of the ferrule and be capable of removal therefrom, and in which the handle has an extension at its lower end, below the'usual threads on the handle, capable of exerting pressure, on the application of the handle to position, for binding the bunch against its seat within the ferrule. The `disksl 23, 24 may be considered 'as one disk or as a disk 24 having a rubber tace, or the disks 23, 24 may be a single disk of rubber or a single disk of hard material, or said disks, either one or both, may be entirely omitted when the extension 18 on the handle is suliicient 'to directly exert pressure against the knot of the bunch. The presence of the rubber disk or facing 23 is desirable in securing a binding action, in addition to that of the threads 17, 19, between the ferrule and theA handle. The disks 23, 24 may be a single rubber disk, but I prefer to place the rubber either in the shape of a disk or facing below the hard disk 24 so that on screwing the handle 10 to position, the lower edge of the extension 18 of the handle may not have a rotary orr grinding action aga-inst the rubber. When the rubber is below the hard disk 24, it will last longer and exert better tension against the handle and knot to'bind the knot in position and the threads 17, 19 together.

It is to be understood therefore that the ferrule is provided within its lower end with a seat to detachably receive the band 14 on the knot end of the bunch of bristles and within its upper end with the threads .19 to receive the thread 17 on the handle,

and that the handle has an extension or prolongation of its lower end to exert the requisite pressure against the knot end of the bunch for irmly securing all of the parts together.

lVh'en the brush is constructed in the manner hereinbefore described, the handle, ferrule and bunch ot' bristles may be separated from one another whenever desired vor necessary and the bunch'sterilized in boiling wat-er 0r otherwise without injury to either the ferrule or the handle.

What I claim as my invention and desire to secure by Letters Patent, is:

1. A lather brush comprising a bunch of bristles or the like having'a knot-end encompassed by a tight-fitting metal band whose sides converge downwardly and inwardly and which has a convexed exterior seating surface extending around the band, the upper edge of the band being at thetop of said knot-end, a ferrule having a screwthread within its upper portion and below said thread a plain tubular section and below said tubular section inwardly converging walls which terminate in a lower narrow, plain annular inner contracted sur-.

face, said inwardly converging walls forming an annular seat for and receiving the correspondingly shaped exterior surfaces of said metal band and said lower contracted surface extending below said band, and a handle having a threaded section to engage the upper threaded section of the ferrule and below its threaded section a plain downwardly projecting extension to enter the said tubular section of the err'ule and exert presL sure against the knot of said bunch at the upper annular edge of said band to firmly bind said band against said annular seat, said handle, ferrule and bunch being separable from one another. l

2. A lather brush comprising a bunch of bristles or the like having a knot-end encolnpassed by a tight-fitting metal band whose ysides converge downwardly and inwardly and which has a conveXed exterior seating surface extending around the band, the upper edge of the band being at the top of said knot-end, a ferrule having a screw thread within its upper portion and below said thread a plain tubular section and below said tubular section inwardly converging walls which terminate in a lower narrow, plain annular inner contracted sur face, said inwardly converging walls forming an annular seat for and receiving the correspondingly shaped exterior surfaces of said metal band and said lower contracted surface extending below said band, a plain disk dropped upon said knot-end extending over the upper annular edge of said band, and a handle having a threaded section to engage the upper threaded section of the ferrule and below its threaded section a plain downwardly projecting extension to enter said tubular section of the ferrule and exert pressure against said disk and therethrough against the knot of said bunch at the upper annular edge of said band to firmly bind said band against said annular seat, said handle, disk, ferrule and bunch being separable from one another.

Signed at New York city, in the county of New York and State of New York, this 17th day of April, A. D. 1922.

MARCUS B. BEHRMAN. 

